Wireless network receiver

Abstract

A wireless network receiver for showing different appearances according to different requirements includes a wireless network receiving unit and a shell unit. The wireless network receiving unit includes an external electrical connector disposed on a front side thereof and a SIM card connector disposed on a top side thereof for receiving at least one SIM card. The shell unit includes a shell module for enveloping the wireless network receiving unit and selectively exposing or hiding the external electrical connector. The shell module includes a plurality of top covers, the external surfaces of the top covers have different appearances, and the SIM card connector is hidden by any one of the top covers.

1 . A wireless network receiver, comprising:
 a wireless network receiving unit including an external electrical connector disposed on a front side thereof and a SIM card connector disposed on a top side thereof for receiving at least one SIM card; and   a shell unit including a shell module for enveloping the wireless network receiving unit and selectively exposing or hiding the external electrical connector, wherein the shell module includes a plurality of top covers, the external surfaces of the top covers have different appearances, and the SIM card connector is hidden by any one of the top covers.   
     
     
         2 . The wireless network receiver as claimed in  claim 1 , wherein the wireless network receiving unit further comprises:
 a heat-dissipating unit having at least one main heat-dissipating body and a front heat-dissipating body extended forward from the at least one main heat-dissipating body;   a first substrate unit disposed on the heat-dissipating unit and contacting the heat-dissipating unit, wherein the first substrate unit includes at least one first function circuit board and a plurality of first function chips electrically connected to the at least one first function circuit board, and the at least one first function circuit board has an external circuit board extended forward from a front side thereof and disposed on the front heat-dissipating body;   a second substrate unit electrically connected to the first substrate unit and contacting the heat-dissipating unit, wherein the second substrate unit includes at least one second function circuit board electrically connected to the at least one first function circuit board and a plurality of second function chips electrically connected to the at least one second function circuit board; and   an electrical connector unit including an electrical connecting casing contacting the front heat-dissipating body and enveloping the front heat-dissipating body and the external circuit board.   
     
     
         3 . The wireless network receiver as claimed in  claim 2 , wherein the heat-dissipating unit has at least two lateral heat-dissipating bodies respectively extended upward from two opposite lateral sides of the at least one main heat-dissipating body, and the two lateral heat-dissipating bodies respectively contact two opposite lateral sides of the at least one first function circuit board and two opposite lateral sides of the at least one second function circuit board, each lateral heat-dissipating body has a plurality of lateral heat-dissipating fins projected outward from an outer surface thereof, and the at least one main heat-dissipating body has a plurality of bottom heat-dissipating fins projected downward from a bottom side thereof. 
     
     
         4 . The wireless network receiver as claimed in  claim 2 , wherein the first substrate unit includes a first electrical connector disposed on and electrically connected to the at least one first function circuit board, the second substrate unit includes a second electrical connector disposed on and electrically connected to the at least one second function circuit board, and the at least one first function circuit and the at least one second function circuit are electrically connected with each other by matching the first electrical connector and the second electrical connector. 
     
     
         5 . The wireless network receiver as claimed in claim wherein the electrical connecting casing is fixed on the heat-dissipating unit through a plurality of fixing elements. 
     
     
         6 . The wireless network receiver as claimed in  claim 2 , wherein the SIM card connector is electrically connected to the at least one second function circuit board, the external electrical connector is composed of the front heat-dissipating body, the external circuit board and the electrical connecting casing, the shell module has a front opening for exposing the external electrical connector and a top opening for exposing the SIM card connector, and the top opening is closed by any one of the top covers. 
     
     
         7 . The wireless network receiver as claimed in  claim 2 , wherein the SIM card connector is electrically connected to the at least one second function circuit board, the shell module includes a top shell and a bottom shell mated with the top shell, the top shell includes a main body and a front cover mated with a front portion of the main body for enveloping the electrical connecting casing, any one of the top covers is disposed on the main body, the main body has a top opening for exposing the SIM card connector, the top opening is closed by any one of the top covers, and the bottom shell has a plurality of heat-dissipating holes. 
     
     
         8 . The wireless network receiver as claimed in  claim 7 , wherein the at least one main heat-dissipating body has a receiving groove formed on the bottom surface thereof, the bottom shell has a heat-dissipating opening for exposing the receiving groove and a shielding board received in the heat-dissipating opening, and the at least one main heat-dissipating body has an annular heat-dissipating portion disposed on the bottom surface thereof and between the inner surface of the heat-dissipating opening and the shielding board. 
     
     
         9 . The wireless network receiver as claimed in  claim 1 , wherein the wireless network receiving unit further comprises:
 a heat-dissipating unit having at least one main heat-dissipating body and a front heat-dissipating body extended forward from the at least one main heat-dissipating body;   a first substrate unit disposed on the heat-dissipating unit, wherein the first substrate unit includes at least one first function circuit board and a plurality of first function chips electrically connected to the at least one first function circuit board;   a second substrate unit electrically connected to the first substrate unit, wherein the second substrate unit includes at least one second function circuit board electrically connected to the at least one first function circuit board and a plurality of second function chips electrically connected to the at least one second function circuit board; and   an electrical connector unit including an electrical connecting casing contacting the front heat-dissipating body and enveloping the front heat-dissipating body and a front portion of the at least one first function circuit board.   
     
     
         10 . The wireless network receiver as claimed in  claim 9 , wherein the heat-dissipating unit has at least two lateral heat-dissipating bodies respectively extended upward from two opposite lateral sides of the at least one main heat-dissipating body, and the two lateral heat-dissipating bodies respectively contact two opposite lateral sides of the at least one first function circuit board and two opposite lateral sides of the at least one second function circuit board, each lateral heat-dissipating body has a plurality of lateral heat-dissipating fins projected outward from an outer surface thereof, and the at least one main heat-dissipating body has a plurality of bottom heat-dissipating fins projected downward from a bottom side thereof. 
     
     
         11 . The wireless network receiver as claimed in  claim 9 , wherein the first substrate unit includes a first electrical connector disposed on and electrically connected to the at least one first function circuit board, the second substrate unit includes a second electrical connector disposed on and electrically connected to the at least one second function circuit board, and the at least one first function circuit and the at least one second function circuit are electrically connected with each other by matching the first electrical connector and the second electrical connector. 
     
     
         12 . The wireless network receiver as claimed in  claim 9 , wherein the electrical connecting casing is fixed on the heat-dissipating unit through a plurality of fixing elements. 
     
     
         13 . The wireless network receiver as claimed in  claim 9 , wherein the SIM card connector is electrically connected to the at least one second function circuit board, the at least one first function circuit board has an external circuit board extended forward from the front portion thereof and disposed on the front heat-dissipating body, the external electrical connector is composed of the front heat-dissipating body, the external circuit board and the electrical connecting casing, the shell module has a front opening for exposing the external electrical connector and a top opening for exposing the SIM card connector, and the top opening is closed by any one of the top covers. 
     
     
         14 . The wireless network receiver as claimed in  claim 9 , wherein the SIM card connector is electrically connected to the at least one second function circuit board, the shell module includes a top shell and a bottom shell mated with the top shell, the top shell includes a main body and a front cover mated with a front portion of the main body for enveloping the electrical connecting casing, any one of the top covers is disposed on the main body, the main body has a top opening for exposing the SIM card connector, the top opening is closed by any one of the top covers, and the bottom shell has a plurality of heat-dissipating holes. 
     
     
         15 . The wireless network receiver as claimed in  claim 14 , wherein the at least one main heat-dissipating body has a receiving groove formed on the bottom surface thereof, the bottom shell has a heat-dissipating opening for exposing the receiving groove and a shielding board received in the heat-dissipating opening, and the at least one main heat-dissipating body has an annular heat-dissipating portion disposed on the bottom surface thereof and between the inner surface of the heat-dissipating opening and the shielding board. 
     
     
         16 . The wireless network receiver as claimed in  claim 1 , wherein the wireless network receiving unit further comprises:
 a heat-dissipating unit having at least one main heat-dissipating body and a front heat-dissipating body extended forward from the at least one main heat-dissipating body;   a wireless network receiving module disposed on the heat-dissipating unit, wherein the wireless network receiving module includes a first substrate unit and a second substrate unit electrically connected to the first substrate unit: and   an electrical connector unit including an electrical connecting casing contacting the front heat-dissipating body and enveloping the front heat-dissipating body and a front portion of the first substrate unit.   
     
     
         17 . The wireless network receiver as claimed in  claim 16 , wherein the heat-dissipating unit has at least two lateral heat-dissipating bodies respectively extended upward from two opposite lateral sides of the at least one main heat-dissipating body, the two lateral heat-dissipating bodies respectively contact two opposite lateral sides of the first substrate unit and two opposite lateral sides of the second substrate unit, each lateral heat-dissipating body has a plurality of lateral heat-dissipating fins projected outward from an outer surface thereof, and the at least one main heat-dissipating body has a plurality of bottom heat-dissipating fins projected downward from a bottom side thereof. 
     
     
         18 . The wireless network receiver as claimed in  claim 16 , wherein the SIM card connector is electrically connected to the second substrate unit, the first substrate unit has an external circuit board extended forward from the front portion thereof and disposed on the front heat-dissipating body, the external electrical connector is composed of the front heat-dissipating body, the external circuit board and the electrical connecting casing, the shell module has a front opening for exposing the external electrical connector and a top opening for exposing the SIM card connector, and the top opening is closed by any one of the top covers. 
     
     
         19 . The wireless network receiver as claimed in  claim 16 , wherein the SIM card connector is electrically connected to the second substrate unit, the shell module includes a top shell and a bottom shell mated with the top shell, the top shell includes a main body and a front cover mated with a front portion of the main body for enveloping the electrical connecting casing, any one of the top covers is disposed on the main body, the main body has a top opening for exposing the SIM card connector, the top opening is closed by any one of the top covers, and the bottom shell has a plurality of heat-dissipating holes. 
     
     
         20 . A wireless network receiver, comprising:
 a wireless network receiving unit including an external electrical connector disposed on a front side thereof and a top opening formed on a top side thereof; and   a shell unit including a shell module for enveloping the wireless network receiving unit and selectively exposing or hiding the external electrical connector, wherein the shell module includes a plurality of top covers, the external surfaces of the top covers have different appearances, and the top opening is closed by any one of the top covers.